id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2327	Adding cross-domain configuration in HTTP2 is invalid	yl-yue		"Invalid configuration as follows:

{{{
    server {
        listen       8080 http2;
        server_name  localhost;
    
        location / {
            add_header 'Access-Control-Allow-Origin' $http_origin always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE';
            add_header 'Access-Control-Allow-Credentials' 'true';
            add_header 'Access-Control-Allow-Headers' 'keep-alive,user-agent,cache-control,content-type,x-user-agent,x-grpc-web,grpc-timeout,device-tag';
    
            if ($request_method = 'OPTIONS') {
                return 204;
            }
            
            grpc_pass grpc://192.168.0.12:31201;
        }
    }
}}}

After debugging, the add_header command in http1.1 takes effect. After http2 is added, the add_header command becomes invalid
"	defect	closed	critical	nginx-1.21	nginx-core		duplicate	http2,cors	yl-yue	docker pull nginx:1.21.6	docker pull nginx:1.21.6